JPS6056253A - Electrode apparatus for measurement of dissolved oxygen gas concentration - Google Patents
Electrode apparatus for measurement of dissolved oxygen gas concentrationInfo
- Publication number
- JPS6056253A JPS6056253A JP58164614A JP16461483A JPS6056253A JP S6056253 A JPS6056253 A JP S6056253A JP 58164614 A JP58164614 A JP 58164614A JP 16461483 A JP16461483 A JP 16461483A JP S6056253 A JPS6056253 A JP S6056253A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- oxygen gas
- sample chamber
- dissolved oxygen
- gas concentration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/38—Cleaning of electrodes
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、工業用水や化学反応過程にツ３−けるいろい
ろな溶液の酸素ガス濃度、あるいは医療とくに、臨床応
用での血液中の酸素ガス濃度全測定するための溶存酸素
ガス濃度測定用電極装置に関する。近年、臨床医学の分
野では血液中の溶存酸素の測定は、循環器や呼吸器系疾
恵の診断にしばしば利用されている。とくに、未熟児に
おいては、血中酸素が多ずきると、未熟児網膜症を起し
、少なすきると脳障害全ひきおこす結果となるため呼吸
管理は厳密に行なわれている。本発明はこのような分野
に利用さ！シる溶存酸素ガス濃度タ］定用電すラ装置に
関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is useful for measuring the concentration of oxygen gas in industrial water, various solutions used in chemical reaction processes, or the total concentration of oxygen gas in blood in medical applications, particularly in clinical applications. The present invention relates to an electrode device for measuring dissolved oxygen gas concentration. In recent years, in the field of clinical medicine, measurement of dissolved oxygen in blood has often been used to diagnose diseases of the circulatory system and respiratory system. Particularly in premature infants, respiratory control is strictly performed because too much oxygen in the blood can cause retinopathy of prematurity, and too little oxygen can lead to total brain damage. The present invention can be used in such fields! This invention relates to a device for measuring dissolved oxygen gas concentration.
従来例のｔｔｌｊ成とその問題点
血中酸素ガス濃度の測定用電極としてクラーク（ＣＬＡ
ＲＫ ）電極が知られており、これは第１図に示すよう
に、絶縁体１て支持された指示電極２および参照電極３
企電解液４を入れた容器らの内部に浸漬し、指示電極２
に接触させて隔１ｊｉ ６ ｆ、 ０−リング７て容器
５に取りつけている。指示電極２にはリード線８を接続
した白金、金などの貴金属が用いられ、参１（・、１電
極３にはリード線９を有する銀あるいは■４−塩化銀電
極が用いられる。Conventional TTLJ configuration and its problems Clark (CLA) is used as an electrode for measuring blood oxygen gas concentration.
RK) electrodes are known, as shown in FIG.
The indicator electrode 2 is immersed in a container containing the intended electrolyte 4.
The O-ring 7 is attached to the container 5 at a distance 1 ji 6 f in contact with the 0-ring 7 . The indicator electrode 2 is made of a noble metal such as platinum or gold to which a lead wire 8 is connected, and the electrode 3 is a silver or silver chloride electrode having a lead wire 9.
このような電極で血液中の酸素ガスを測定するさいには
、指示電極２と参照電極３の間に０．４〜０．８ボルト
の一定電圧を印加しておき隔膜６を透過した酸素ガスを
定電圧電解し、このときの電解電流の大きさで酸素ガス
濃度を測定する。このような電極を用いて血液ガスを測
定するさい、血液は非常に凝固しやすいために長期にわ
たっての使用においては隔膜に凝血したり、血液中の蛋
白質が隔膜に付着して上記隔膜に目づ１りを起こし、そ
の結果、応答速度が遅くなったり、測定値の再現性をわ
るくしたりする。こうなると電極全分解掃除するか隔膜
の交換を行なわなければならない等の保守点検が必要と
なる欠点があった。When measuring oxygen gas in blood with such an electrode, a constant voltage of 0.4 to 0.8 volts is applied between the indicator electrode 2 and the reference electrode 3, and the oxygen gas that has passed through the diaphragm 6 is is subjected to constant voltage electrolysis, and the oxygen gas concentration is measured by the magnitude of the electrolytic current at this time. When measuring blood gases using such electrodes, blood tends to coagulate, so if used for a long period of time, blood may clot on the diaphragm, or proteins in the blood may adhere to the diaphragm, causing the diaphragm to become visible. As a result, the response speed becomes slow and the reproducibility of measured values deteriorates. When this happens, there is a drawback that maintenance and inspections are required, such as having to completely disassemble and clean the electrode or replace the diaphragm.
発明の目的
本発明の目的は、上記従来の欠点である保守点検のわず
られしさをなくするもので、被検液が触れる隔膜の表面
を研摩するだめの手段を具備する溶存酸素ガス濃度測定
用電極装置メヲ提供するものである。OBJECT OF THE INVENTION The object of the present invention is to eliminate the troublesome maintenance and inspection that is the drawback of the conventional methods, and to provide a method for measuring dissolved oxygen gas concentration, which is equipped with means for polishing the surface of the diaphragm that comes into contact with the test liquid. This provides an electrode device for use.
発明の構成
本発明の溶存酸素ガス濃度測定用電極装置は、液路に連
通ずる試料室に酸素ガス測定電イセの感応部が上記試別
室の１．ｊｉＱを構成するように上記電極を上記試料室
に配設し、上記感応部に接触可能な磁性回転子を上記試
イ′−１室に封入し、外部磁界により上記回転子を回転
させて上記電極の感応部を擦るよう構成したものであり
、懸濁液中の微粒子が電極の感応部である隔膜上に沈着
することを防止し、また、被検液が血液の如き凝固しや
すいものであっても上記隔１灰への凝血は防止でき隔膜
はつねに初めの清浄な状態に維持される。Structure of the Invention In the electrode device for measuring dissolved oxygen gas concentration of the present invention, the sensitive part of the oxygen gas measuring electrode is located in the sample chamber which communicates with the liquid path in 1. The electrodes are arranged in the sample chamber so as to constitute a jiQ, and a magnetic rotor capable of contacting the sensitive part is enclosed in the trial A'-1 chamber, and the rotor is rotated by an external magnetic field. It is designed to rub the sensitive part of the electrode, and prevents fine particles in the suspension from depositing on the diaphragm, which is the sensitive part of the electrode, and also prevents the sample liquid from being easily coagulated, such as blood. Even if blood clots into the septum 1 ashes, it can be prevented and the septum will always be maintained in its original clean state.
実施例の説＋ＪＪ
本発明の一実癩例の断面図全第２図に示す。プラスチッ
クなとの絶縁体でてきた軸１０の先端に指示電極１１を
・搭載し、参照電極１２として銀−塩化銀などの銀糸金
属を上記軸１０の周囲Ｖこ取りつける。リード沼１１１
３および１４ｆ：、指示電極１１と参照電極１２Ｖ（そ
れぞれ接続し、これから電気信号を取り出せるようにす
る。上記の軸１０ば、−上端部に開１］部を有する電解
槽１已に上記指示電イ狙１１が上に位置、するように配
設する。電解槽１５はりん酸系緩価射液Ｖこ代表される
電解液１６で満される。上記電解槽１６の開口部は、ガ
ス透過性の隔膜１７が指示電極１１を姿うようにして封
じる。上記隔膜１７の上に試料室１８を有する上蓋１９
を搭載する。そのさい隔膜１７の中火部は試料室１８の
底部の壁を構成する。試料溶液は、試料室１８に連通ず
る液路２０によって、＋でンフ″（ｉ）ＪＴ−１いて容
易に導入できる。試料室１８にはｆｆｌ性ＩＦＩ ＋１
云子２１があらかじめ封入しておく。磁性回転子２１は
防ｆ’＝と研摩効果を考慮して樹脂、研摩剤、研摩布で
覆う方がよい。試料室１８と電解槽１５は、モータ２２
を収納した容器２３の」二部に固定する。DESCRIPTION OF EMBODIMENTS+JJ A cross-sectional view of a leprosy example of the present invention is shown in FIG. An indicator electrode 11 is mounted on the tip of a shaft 10 made of a plastic insulator, and a silver thread metal such as silver-silver chloride is attached around the shaft 10 as a reference electrode 12. Lead Swamp 111
3 and 14f: Indicator electrode 11 and reference electrode 12V (respectively connected so that an electric signal can be extracted from them. The above-mentioned shaft 10 is attached to one side of the electrolytic tank having an opening 1 at the upper end. The electrolytic tank 15 is filled with an electrolytic solution 16 represented by a phosphoric acid-based slow injection solution V.The opening of the electrolytic tank 16 is designed to allow gas permeation. A transparent diaphragm 17 exposes and seals the indicator electrode 11.A top lid 19 having a sample chamber 18 above the diaphragm 17
Equipped with. The medium heat section of the diaphragm 17 then constitutes the bottom wall of the sample chamber 18 . The sample solution can be easily introduced into the sample chamber 18 through the liquid path 20 communicating with the sample chamber 18.
Yunko 21 has sealed it in advance. It is better to cover the magnetic rotor 21 with resin, abrasive, or abrasive cloth in consideration of f'= and abrasive effects. The sample chamber 18 and the electrolytic cell 15 are operated by a motor 22.
It is fixed to the second part of the container 23 containing the.
モータ２２の軸２４には、磁性体２６を取付けておき、
モータ２２を駆動させ、磁性体２５を回転させると試料
室１８内の磁性回転子２１が隔膜１７を擦りながら廻る
。A magnetic body 26 is attached to the shaft 24 of the motor 22,
When the motor 22 is driven and the magnetic body 25 is rotated, the magnetic rotor 21 inside the sample chamber 18 rotates while rubbing against the diaphragm 17 .
このように、本発明の電極装置は、その感応部である隔
膜１７がつねに磁性回転子２６で研摩されるため、試料
溶液として血液の如き凝固しやすいもの全分析するさい
にも感応部の隔膜が凝血にような自動複極機能を備えて
いることから、分析値が安定であり、電極の較正も頻繁
に行なわなくてすむ。まだ、応答速度に遅れが生ずるこ
ともなく、連続分析ＶＣも好適である。In this way, in the electrode device of the present invention, since the diaphragm 17, which is the sensitive part, is constantly polished by the magnetic rotor 26, the diaphragm 17, which is the sensitive part, is constantly polished by the magnetic rotor 26, so that even when analyzing a sample solution that easily coagulates, such as blood, the diaphragm 17, which is the sensitive part, Since it has an automatic bipolar function similar to blood clots, the analytical values are stable and the electrodes do not need to be calibrated frequently. Continuous analysis VC is also suitable since there is no delay in response speed.
発明の効果
本発明の溶存酸素ガス電極装置は、液路に連通ずる試料
室に酸素ガス測定電極の感応部が上記試料室の壁を構成
するように上記電極全上記試料室に配設し、上記感応部
に接触可能な磁性回転子を上記試料室に封入し、外部磁
界により上記回転子全回転させて上記電極の感応部を擦
るよう構成することにより、凝固しやすい血液の如き試
料溶液中の成分が上記隔膜に沈着することが防止できる
ので、測定値の４１１現性に優れるのみならず電極の較
正、保守の労力が軽減できる。Effects of the Invention The dissolved oxygen gas electrode device of the present invention includes: the electrodes are all disposed in the sample chamber communicating with the liquid path so that the sensitive part of the oxygen gas measuring electrode forms a wall of the sample chamber; A magnetic rotor capable of contacting the sensitive part is enclosed in the sample chamber, and the rotor is rotated fully by an external magnetic field to rub the sensitive part of the electrode. Since it is possible to prevent the components from being deposited on the diaphragm, not only is the 411 accuracy of the measured value excellent, but also the labor for electrode calibration and maintenance can be reduced.
その給果、血液の連続測定を容易に行なうことが可能で
あり、たとえば、手術中における血液酸素濃度の自動監
視もきわめて容易に行なうことができる。As a result, continuous blood measurements can be easily carried out, and for example, automatic monitoring of blood oxygen concentration during surgery can be carried out very easily.
第１図は、従来の溶存酸素ガス置度測定用電極装置の断
面図、第２図は、本発明の実症例の溶存酸素ガス濃度測
定用電極装置の断面図である。FIG. 1 is a sectional view of a conventional electrode device for measuring dissolved oxygen gas concentration, and FIG. 2 is a sectional view of an electrode device for measuring dissolved oxygen gas concentration in an actual case of the present invention.
２．１１・・・・・指示電極、３，１２・・・・・・参
照電極、６．１７・・・−隔膜、２１・・・・・磁性回
転子、２２・・・・・モータ、２５ ・・・磁性体。2.11...Indicator electrode, 3,12...Reference electrode, 6.17...-Diaphragm, 21...Magnetic rotor, 22...Motor, 25...Magnetic material.
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
figure
Claims (2)
部が上記試料室の壁’ｔｌ”Ｊ成するようＩｃ ｌ記電
極を上記試料室に配設し、上記感応ｉ′＃ｌｉ ｖこ１
※触用能々磁性回転子を上記試料室に封入し、外１Ｘｌ
（ｉｉ芸界により上記回転子を回転させて上記電極の感
応部を擦るよう溝成しだ溶存酸素ガス濃度測定用電極装
置・(1) In the sample chamber that communicates with the liquid path, arrange the Ic l electrode in the sample chamber so that the sensitive part of the oxygen gas measuring electrode forms the wall 'tl'J of the sample chamber, and vko1
*Insert the tactile magnetic rotor into the sample chamber above, and set the external 1Xl
(ii) An electrode device for measuring dissolved oxygen gas concentration in which the rotor is rotated to rub the sensitive part of the electrode.
覆されている特許請求の範囲第１項記載の溶イｒば索ガ
ス磯度測定用電極装置。(2) The electrode device for measuring rockyness of a molten iron cable gas according to claim 1, wherein the magnetic rotor is coated with a resin, an abrasive, or an abrasive IY cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58164614A JPS6056253A (en) | 1983-09-07 | 1983-09-07 | Electrode apparatus for measurement of dissolved oxygen gas concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58164614A JPS6056253A (en) | 1983-09-07 | 1983-09-07 | Electrode apparatus for measurement of dissolved oxygen gas concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6056253A true JPS6056253A (en) | 1985-04-01 |
Family
ID=15796535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58164614A Pending JPS6056253A (en) | 1983-09-07 | 1983-09-07 | Electrode apparatus for measurement of dissolved oxygen gas concentration |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6056253A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5619976A (en) * | 1995-02-24 | 1997-04-15 | Honda Giken Kogyo Kabushiki Kaisha | Control system employing controller of recurrence formula type for internal combustion engines |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5129191A (en) * | 1974-09-04 | 1976-03-12 | Matsushita Electric Industrial Co Ltd | Ionkenshutsusochi |
-
1983
- 1983-09-07 JP JP58164614A patent/JPS6056253A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5129191A (en) * | 1974-09-04 | 1976-03-12 | Matsushita Electric Industrial Co Ltd | Ionkenshutsusochi |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5619976A (en) * | 1995-02-24 | 1997-04-15 | Honda Giken Kogyo Kabushiki Kaisha | Control system employing controller of recurrence formula type for internal combustion engines |
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